#include "serialport.h"
-static char **sp_list_new(void)
+int sp_get_port_by_name(const char *portname, struct sp_port **port_ptr)
{
- char **list;
- if ((list = malloc(sizeof(char *))))
- list[0] = NULL;
- return list;
+ struct sp_port *port;
+ int len;
+
+ *port_ptr = NULL;
+
+ if (!portname)
+ return SP_ERR_ARG;
+
+ if (!(port = malloc(sizeof(struct sp_port))))
+ return SP_ERR_MEM;
+
+ len = strlen(portname) + 1;
+
+ if (!(port->name = malloc(len)))
+ {
+ free(port);
+ return SP_ERR_MEM;
+ }
+
+ memcpy(port->name, portname, len);
+
+ *port_ptr = port;
+
+ return SP_OK;
}
-static char **sp_list_append(char **list, void *data, size_t len)
+void sp_free_port(struct sp_port *port)
+{
+ if (!port)
+ return;
+
+ if (port->name)
+ free(port->name);
+
+ free(port);
+}
+
+static struct sp_port **sp_list_append(struct sp_port **list, const char *portname)
{
void *tmp;
unsigned int count;
for (count = 0; list[count]; count++);
- if (!(tmp = realloc(list, sizeof(char *) * (count + 2))))
+ if (!(tmp = realloc(list, sizeof(struct sp_port *) * (count + 2))))
goto fail;
list = tmp;
- if (!(list[count] = malloc(len)))
+ if (sp_get_port_by_name(portname, &list[count]) != SP_OK)
goto fail;
- memcpy(list[count], data, len);
list[count + 1] = NULL;
return list;
fail:
*
* @return A null-terminated array of port name strings.
*/
-char **sp_list_ports(void)
+int sp_list_ports(struct sp_port ***list_ptr)
{
- char **list = NULL;
+ struct sp_port **list;
+ int ret = SP_OK;
+
+ if (!(list = malloc(sizeof(struct sp_port **))))
+ return SP_ERR_MEM;;
+
+ list[0] = NULL;
#ifdef _WIN32
HKEY key;
DWORD max_value_len, max_data_size, max_data_len;
DWORD value_len, data_size, data_len;
DWORD type, index = 0;
+ char *name;
+ int name_len;
if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("HARDWARE\\DEVICEMAP\\SERIALCOMM"),
0, KEY_QUERY_VALUE, &key) != ERROR_SUCCESS)
- return NULL;
+ {
+ ret = SP_ERR_FAIL;
+ goto out_done;
+ }
if (RegQueryInfoKey(key, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
&max_value_len, &max_data_size, NULL, NULL) != ERROR_SUCCESS)
+ {
+ ret = SP_ERR_FAIL;
goto out_close;
+ }
max_data_len = max_data_size / sizeof(TCHAR);
if (!(value = malloc((max_value_len + 1) * sizeof(TCHAR))))
+ {
+ ret = SP_ERR_MEM;
goto out_close;
+ }
if (!(data = malloc((max_data_len + 1) * sizeof(TCHAR))))
+ {
+ ret = SP_ERR_MEM;
goto out_free_value;
- if (!(list = sp_list_new()))
- goto out;
+ }
while (
value_len = max_value_len,
data_size = max_data_size,
{
data_len = data_size / sizeof(TCHAR);
data[data_len] = '\0';
- if (type == REG_SZ)
- if (!(list = sp_list_append(list,
- data, (data_len + 1) * sizeof(TCHAR))))
- goto out;
+#ifdef UNICODE
+ name_len = WideCharToMultiByte(CP_ACP, 0, data, -1, NULL, 0, NULL, NULL)
+#else
+ name_len = data_len + 1;
+#endif
+ if (!(name = malloc(name_len)))
+ {
+ ret = SP_ERR_MEM;
+ goto out;
+ }
+#ifdef UNICODE
+ WideCharToMultiByte(CP_ACP, 0, data, -1, name, name_len, NULL, NULL);
+#else
+ strcpy(name, data);
+#endif
+ if (type == REG_SZ && !(list = sp_list_append(list, name)))
+ {
+ ret = SP_ERR_MEM;
+ goto out;
+ }
index++;
}
out:
free(value);
out_close:
RegCloseKey(key);
- return list;
+out_done:
#endif
#ifdef __APPLE__
mach_port_t master;
Boolean result;
if (IOMasterPort(MACH_PORT_NULL, &master) != KERN_SUCCESS)
- return NULL;
+ {
+ ret = SP_ERR_FAIL;
+ goto out_done;
+ }
if (!(classes = IOServiceMatching(kIOSerialBSDServiceValue)))
- return NULL;
+ {
+ ret = SP_ERR_FAIL;
+ goto out_done;
+ }
CFDictionarySetValue(classes,
CFSTR(kIOSerialBSDTypeKey), CFSTR(kIOSerialBSDAllTypes));
if (!(IOServiceGetMatchingServices(master, classes, &iter)))
- return NULL;
+ {
+ ret = SP_ERR_FAIL;
+ goto out_done;
+ }
if (!(path = malloc(PATH_MAX)))
+ {
+ ret = SP_ERR_MEM;
goto out_release;
-
- if (!(list = sp_list_new()))
- goto out;
+ }
while ((port = IOIteratorNext(iter))) {
cf_path = IORegistryEntryCreateCFProperty(port,
result = CFStringGetCString(cf_path,
path, PATH_MAX, kCFStringEncodingASCII);
CFRelease(cf_path);
- if (result)
- if (!(list = sp_list_append(list, path, strlen(path) + 1)))
- {
- IOObjectRelease(port);
- goto out;
- }
+ if (result && !(list = sp_list_append(list, path)))
+ {
+ ret = SP_ERR_MEM;
+ IOObjectRelease(port);
+ goto out;
+ }
}
IOObjectRelease(port);
}
-
out:
free(path);
out_release:
IOObjectRelease(iter);
- return list;
+out_done:
#endif
#ifdef __linux__
struct udev *ud;
udev_enumerate_add_match_subsystem(ud_enumerate, "tty");
udev_enumerate_scan_devices(ud_enumerate);
ud_list = udev_enumerate_get_list_entry(ud_enumerate);
- if (!(list = sp_list_new()))
- goto out;
udev_list_entry_foreach(ud_entry, ud_list)
{
path = udev_list_entry_get_name(ud_entry);
if (serial_info.type == PORT_UNKNOWN)
goto skip;
}
- list = sp_list_append(list, (void *)name, strlen(name) + 1);
+ list = sp_list_append(list, name);
skip:
udev_device_unref(ud_dev);
if (!list)
+ {
+ ret = SP_ERR_MEM;
goto out;
+ }
}
out:
udev_enumerate_unref(ud_enumerate);
udev_unref(ud);
- return list;
#endif
+
+ if (ret == SP_OK)
+ {
+ *list_ptr = list;
+ }
+ else
+ {
+ if (list)
+ sp_free_port_list(list);
+
+ *list_ptr = NULL;
+ }
+
+ return ret;
}
/**
* Free a port list returned by sp_list_ports.
*/
-void sp_free_port_list(char **list)
+void sp_free_port_list(struct sp_port **list)
{
unsigned int i;
for (i = 0; list[i]; i++)
- free(list[i]);
+ sp_free_port(list[i]);
free(list);
}
* @return SP_OK on success, SP_ERR_FAIL on failure,
* or SP_ERR_ARG if an invalid port or name is passed.
*/
-int sp_open(struct sp_port *port, char *portname, int flags)
+int sp_open(struct sp_port *port, int flags)
{
if (!port)
return SP_ERR_ARG;
- if (!portname)
- return SP_ERR_ARG;
-
- port->name = portname;
-
#ifdef _WIN32
DWORD desired_access = 0, flags_and_attributes = 0;
/* Map 'flags' to the OS-specific settings. */
projects / libserialport.git / blobdiff